Square nut; heavy
A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
NSN 6620-00-517-6209
NSN 6145-01-442-0199
NSN 6620-01-466-8991
NSN 6645-01-102-8127
NSN 6685-01-529-6504
NSN 5999-01-187-8389
NSN 6150-01-206-3609
NSN 6645-01-656-6416
NSN 5950-01-118-8272
NSN 5950-00-252-1423
NSN 5960-00-925-9032
NSN 7035-00-481-5182